Effect of aging on treadmill exercise induced theta power in the rat

Terry B J Kuo, Jia Yi Li, Sandy Shen-Yu Hsieh, Jin Jong Chen, Ching Yao Tsai, Cheryl C H Yang

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The effects of aging on the electroencephalogram (EEG) power spectra of 8- and 60-week-old Wistar-Kyoto rats were examined during the waking baseline and treadmill exercise. Using continuous and simultaneous recordings of EEG and electromyogram signals, this study demonstrated that the alpha (10-13 Hz), theta (6-10 Hz), and delta (0.5-4 Hz) powers of the EEG were significantly lower in older rats as compared with young rats during the waking baseline. In the young rats, treadmill exercise resulted promptly in a higher alpha power, higher theta power, and higher theta power percentage as compared with the waking baseline. In the aged rats, treadmill exercise only resulted in a higher theta power and higher theta power percentage. During the treadmill exercise, however, the aged rats still showed a significantly lower exercise-evoked theta power change than the young rats. These results suggested that aging is accompanied by lower EEG activities during waking and this also is accompanied by an attenuated response of the brain to exercise in the rat.

Original languageEnglish
Pages (from-to)297-308
Number of pages12
Issue number3
Publication statusPublished - Sept 2010
Externally publishedYes


  • Aging
  • During exercise
  • EEG spectra
  • Theta power of the EEG
  • Treadmill exercise
  • Waking status

ASJC Scopus subject areas

  • Ageing
  • Geriatrics and Gerontology


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